Marquez, TX: 20 Violations - Home Safety Score unavailable
1 ZIP code · 2 water systems · Updated
Data: EPA SDWIS
Marquez Water: The Quick Version
- Your city's water systems recorded 20 violations since 2021.
- Average of reported 90th-percentile lead results: 0.0033 mg/L.
- Homes built before 1986: 23% - older plumbing may contain lead solder.
- Estimated remediation: $300 per household.
- Health risk index (ZipCheckup composite of CDC data): 15.02.
Water Systems Serving Marquez
More than one public water system is linked to Marquez, TX: federal records tie 2 systems to the area, and the 2 with the largest reported service populations are shown below. Which of them supplies a particular address depends on where the property sits, and a water bill or the utility can confirm it.
Overview
We track home safety data for 1 ZIP code in Marquez, Texas (population ~1,818), covering 2 community water systems serving approximately 11,292 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.
1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. 1 health-based violation appear in the available health breakdown.
Water Sources
Marquez water systems draw from: Groundwater.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0033 mg/L (EPA action level: 0.015 mg/L)
- 0 of 1 ZIP code with known status exceed the EPA lead action level
Radon Risk
1 of 1 ZIP records with known zones is in EPA Radon Zone 3.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Public Notice Rule | Reporting | 6 | 1 |
| Lead and Copper Rule Revisions | Treatment Technique | 4 | 1 |
| Cyanide | Inorganic | 2 | 1 |
| Dalapon | Organic | 2 | 1 |
| Oxamyl (Vydate) | Organic | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 77865 | — | 20 | 1 | Concord Robbins Water Supply Corporation |
All ZIP Codes in Marquez
- 77865 - 20 violations ⚠
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
CDC Health Data for Marquez
Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Key Contaminants Detected in Marquez
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Marquez's Housing Stock?
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
If your home in Marquez predates 1986, testing the tap is the direct way to learn about lead; the median build year of 2006 cannot answer that for you.
Most homes in Marquez were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Marquez: Remediation Cost in Perspective
Measured against the median home value, the estimated cost of fixing the issues flagged for Marquez lands in the lowest of the three tiers this page uses.
Estimated remediation costs in Marquez can be compared with local home values. The $150–$600 estimated range can be set against the median property value; actual costs vary by home. Home values are 19% below the Texas average.
Protecting Children from Lead in Marquez
Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Several limits apply to the lead numbers for Marquez. The figure shown is an average of 90th-percentile results from ZIP codes in the city, and it is below 0.010 mg/L; the federal action level of 0.015 mg/L applies to each water system's own 90th percentile, not to an average like this one, and being below it does not make water free of lead. About 23% of local homes were built before 1986. A test at the home's own tap shows its level, and a filter certified to NSF/ANSI 53 for lead reduction is an option if a test finds lead.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Marquez, TX